263896923 has 18 divisors (see below), whose sum is σ = 359332636. Its totient is φ = 172273472.

The previous prime is 263896901. The next prime is 263896937. The reversal of 263896923 is 329698362.

It is not a de Polignac number, because 263896923 - 2⁸ = 263896667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263896993) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2335315 + ... + 2335427.

Almost surely, 2^263896923 is an apocalyptic number.

263896923 is a deficient number, since it is larger than the sum of its proper divisors (95435713).

263896923 is an frugal number, since it uses more digits than its factorization.

263896923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 199 counting only the distinct ones).

The product of its digits is 839808, while the sum is 48.

The square root of 263896923 is about 16244.9045241885. The cubic root of 263896923 is about 641.4233644700.

Multiplying 263896923 by its sum of digits (48), we get a square (12667052304 = 112548²).

The spelling of 263896923 in words is "two hundred sixty-three million, eight hundred ninety-six thousand, nine hundred twenty-three".